This course aims to provide graduate students with a solid foundation in the structural properties of materials. It covers the structure of crystalline materials and imperfections (including point defects, dislocations and interfaces). Emphasis will be placed upon how the structural characteristics determine structural properties. The course discusses three structural properties in detail – elasticity, plasticity and fracture. Each of these properties will be derived from the knowledge of material structure and physical principles with mathematical tools. To this end, the course also introduces the necessary theories of continuum mechanics and micromechanics. Upon completion of the course, students will have gained an in-depth understanding of material structure and the associated structural properties. They will also acquire the ability to perform quantitative analysis in their research.